The 71-year-old asserts that the app, which bears his name and is used to estimate the size of a man's penis based on his shoe size, infringes on his trademark and uses his name without permission.

The singer, whose real name is Ernest Evans, says that the unauthorized use of Checker's name and trademark will "blur and tarnish" his trademark by associating the Checker name with "obscene, sexual connotation and images." Checker is seeking a half-billion dollars in damages and restitution.

Hewlett-Packard notes that the application was only downloaded 84 times and was removed in September 2012 and is no longer available on any Palm or HP hosted website, reports the Daily News.